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A small can is hanging from the ceiling. A rifle is aimed directly at the can, as the figure illustrates. At the instant the gun is fired, the can is released. Ignore air resistance and show that the bullet will always strike the can, regardless of the initial speed of the bullet. Suppose that the bullet strikes the can before they can reaches the ground.
Find out the minimum sound intensity
A car with a mass of 1500kg moving at 40m/s comes to a stop in8 seconds. What is the change in momentum of the car
A container is filled with water to a depth of 48.3 cm. on top ofthe water floats a 24.4 cm thick layer of oil with a density of 862kg/m3. what is the absolute pressure at the surface of the water? the acceleration of gravity is 9.81 m/s2.
question a rifle of 8lb fires a bullet weighing 0.8oz which leaves the rifle with a muzzle velocity of 2000 fts. what
A supertrain of proper length 97 m travels at a speed of 0.91c as it passes through a tunnel having proper length 50 m. As seen by a trackside observer, is the train ever completely within the tunnel? Yes No If so, how much room does it have to spare..
A diver shines a flashlight upward from beneath the water ata 38.0^\circ angle to the vertical. At what angle does the light leave the water?
Two 63 g ice cubes aredropped into 260 g of water in athermally insulated container. If the water is initially at25°C, and the ice comes directly from a freezer at -15°C,what is the final temperature at thermal equilibtrium? (Neglect the heat capa..
John weighs 716 N, and Marcia weighs 506 N. Estimate the gravitational force between them when they are 0.45 m apart
The microwave radiation left over from the Big Bang explosion of the universe has an average energy density of 4. 10-14 J/m3. What is the rms value of the electric field of this radiation
A railroad car of mass 2.51 104 kilogram, is moving with a speed of 3.80 m/s. It collides and couples with three other coupled railroad cars, Determine the speed of the four cars after the collision
a 0.346kg glider moves along a frictionless level air track tugged by a mass of 0.050kg suspended vertically over a pulley
An average temperature of the rest of the universe
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